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The Extragalactic Background Radiation — 1989

Published online by Cambridge University Press:  08 February 2017

Malcolm S. Longair
Malcolm S. Longair*
Affiliation:
Royal Observatory Blackford Hill Edinburgh EH9 3HJ, UK

Extract

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This symposium has brought back many happy memories of the time 20 years ago when Rashid Sunyaev and I surveyed what was known about the extragalactic background radiation at that time. In one of our papers of 1969, we published a simple representation of the extragalactic background radiation spectrum, as it was known then (Figure 1). Extragalactic background radiation had been discovered in the radio, microwave, X- and γ-ray wavebands but only upper limits were available in the intervening wavebands which have been the principal concern of this symposium. It is remarkable that, over the last 20 years, although the observational techniques have developed dramatically and there have been enormous astrophysical advances, the wavebands between 1 mm and 1 nm have continued to be very difficult indeed for studies of the extragalactic background.

Type
VI. Conference Summaries
Information
Symposium - International Astronomical Union , Volume 139: The Galactic and Extragalactic Background Radiation , 1990 , pp. 469 - 484
Copyright
Copyright © Kluwer 1990 

References

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